Bascule-bridge.



J. B. STRAUSS. BAscULE BRIDGE.

APPLICATION FILED DEC.26.

` Patented Jan. 9, 1917.

3 SHEETS-SHEET l.

Patented Jan.

3 SHEETS-SHEET 2.

J. B. STRAUSS.

BASCULE BRIDGE.

APPLICATION FILED DEc.26. I9II.

L21 3,63., Patented Jan. 9,1917.

3 SHEETS-SHEET 3.

"gwwfww I@ and 'for its object to provide a new im- Wifi fe BASULE-BRIDGE.

Specification of Letten Patent,

Patented. den. 9, 12.93?.

Application filed December 26. 191i. Serial No. 'l.

To 9:35 whom t may conoem "Se it known that l, JOSEPH STRAUss, Citizen oi' the United States. residing at Chicago, in the vcounty of Cook and State illinois, have invented :t certain new and 'useful improvement in Bassum-Bridges, of vvbicli the 'following is a. specification.

This invention relates tou bascule bi'idges 'ioved bridge of this description.

invention is illustrated in the aecomponving drawings, wherein Figure l is a View showing one forni oi the biidge embodying tbe invention. Fig. 2 is :i view showing :i :modified construction. big. is on enlarged View showing the Conneetion between tbe movable spun and tlie fixed support. f. is a plan view of the oidge in l. n lioiizontal seet'onzil view 'tliiougli one of tbe tiunnions. is e plan vieiv of tbe device shown in 23 with parte omitted.

Like numerals refer to like parts throughout tbe seveial igures.

Referring now to tl'ie Figs. l., 3, 4 and 5,

`tlieiee is illustifeted :t bascule bridge comprising s movable span l piovided with trusses 2. said movable span beintgpivotgilly ooneeted with e. fixed support, said fined support having trusses l which are in tbe seine vertical plane es the trusses Z of the 1nov able span. The ends of the trusses of 'the fixed suppot and -tlie movable span ibut, and there is e turning connection contained within tbe limits of tbe movable span and support and movaloljyv connecting them togetliei'. This construction is 5 Where tbeabutiiing ends of trusses Q and 4; ae shown. in tbe suine line with these trusses is a pivot oi' tiunnion 5 which Works. in bearing 6. The ti'unnion is held in plee by the inelosing piece 7 connected with the trusses 2. Associated with the mein einen a supporting frame 8 for supporting tb e coun4 tenvveiglit E). This counter-weight is oonneeted with the Counter-Weight frame which is pivetally mounted upon the fixed tower oi' supporting frame 8. The counter-Weigh frame lios two portions7 10 and 10a. The pait l0 oontai ling the eountereiveiglit traine tresses is in the' suine vertical plane containingy the trusses of the movable spun and Xed support and the pol-tion 10a containing pmt of the members of the coi1ntei--weigbt Tfin'ieis on one side o" the vertical plane eo.v taining the trusses of the movable span illu stmted in l and 'the fixed support. T he counter-Weight f 'unie is connected with the movable span by means of s link il. @ne oi more hooks l2 :we connected with the freine l() and are adopted to be hooked ove: :i suitable member :it tbe top of tbe movable span l so as to hold said movable spun against further movement when it reaches its proper li0rizontal position. These books l@ eet es anchors to anchos the moving span to the fixed tower or supporti' g frame S and ae preferably in tile suine *vertical plane containing the trusses oi the movable spun :ind ixed support. These hooks torni an anchoring device o1' pm; separate from tl link 11G through ivbieli die counteiiveiglit effect is transmitted to the movable span. bis ancboi'ing putt beingy Connected .vitb tbe oounteinf'eiglit freine l0 automatically die en @es from the movable spun when tbe movable spun is opened, :is slioivn in dotted lines in Fig'. l, end antonmticolly engages lie i'novable span when the movable span is Closed; as sbown in full lines in Fig'. l. in operating sti-ut 13 is pivotslly connected ut vvitii the supporting freine 8 is provided with u. fsck il. ii pinion i5 mounted on the n'xovuble spun engages said rack, smid jMinion being opeinted by any suitulfe motoidevice. ivloui'ited upon tbe operating strut 13 is :i freine 16 provided with en gagging vvbeels 1'? which engage said strut. This frame is preferably mounted upon tbe shaft of the pinion 'l5 so as to be fastened to the movable span und slide upon the strut l.

"in e sliown double deck construction lie-rein tbe movable span l is 'pi'ovided iti. :in upper iioo i8. The zounter-iveiglit iii-w nie l() is extended ton/'ard the' *front und is provided with n VHooi' poirtion 19 vvliicli forms u Connecting part between the movable fpan :and tbe fixed partj seid fixed port also having en upper i'iooi 20. The eounteif-woiglit as shown in Fig. 6 is divided into two sections, one et esoh side and these sections pass on opposite sides of the roadway 20. lt will be noted that when the bridge is closed. the floor l) spans the s"soe between tbe i'looiV 1S and the movable span und the iioor 20m2 tlie fixed part.

It will further be noted that in both of these constructions, the hook l2 is disengaged andqinoved up when the movable span is open and automatically engages tlie Inov- Fig "l naiv able span when it is lowered'to its closed lil@ Aable span having trusses9 e, sappy@ movable span having trusses, the trusses oit position. It will be noted that the movable span 1 is outside of the boundary line of the end post 21 of the counter-weight support ing frame 8. This construction is clearly shown .in Fig. 3 Where the inclined post 2l is provided with an extension 22 adjacent to the'movable span, said movable span being 'mounted upon said extension. T his construction permits the main span to open fully Without striking the end post of the counter-Weight supporting frame 8, and thus permits a minimum length of the movable span for a given opening. The construction with the trusses of the main span and fixed support in alinenient permits 'the shortening of the Floor members of the main spa-n and of the approach span, and mits the use of a smaller foundation, thereby greatly cheapening the construction. it also decreases the Weight of the movable span and hence of the counterdveight, which in a large bridge is a very important factor. This construction also perini two bridges to be placed side by side and to be inode much closer together than with the ordinary construction, and from this point et' view particularly valuable in railway const uction as it thus avoids the spreading of the trac s.

I claim:

1. A bascule bridge conuorisinef a movor said the movable span and support on sanne side being in the same vertical plane and an operative connection between the trusses of the movable span and the support, in the same vertical plane as said trusses, whereby the Weight transmission from the movable span to the' support, Whiie the moi/ab o soon is being .opened and closed, is eliiecteu witnin the plane of the trusses or the roovsbie span and the support.

2. A bascule bridge 'conunisine,1 a movabie 4Span trusses at each side thereon a support for said movable span having trusses at each side thereof, a counter- ,frame having trusses at each side thereof, trusses of the movable span, support and counter-weight frame on the side bemg 1n the same vertical plane, a counter- Weight connected with said. counter-Weight frame, part of the members of the counterweight frame bein on one side of the vertical plane contaimng the trusses of said movable span and support and a Weight transmitting connection between the trusses of the movable span and the support, and located in the vertical plane of said trusses.

3. A bascule bridge comprising a mov` ableA span provided yWith trusses, an approach span provided with trusses, the epproach span Iprovided with counter-Weight supporting parts, a counter-Weight iframe connecting with said supporting perte, the

trusses of the movable span and approach span being in alineinent and trunnions in tei-posed between the ends ot' the adjacent trusses of said movable span and support, and in the plane of said trusses for movably connecting them together.

e. A bascule bridge comprising a move-bie span provided with trusses, a supporting part therefor provided With trusses, the ends of the trusses oi the movable span and sii 4porting part abutting, a Weight transmitting connection contained Within the limh its supporting part nd connecting thorn together. so that they may move relative to each other to permit the movable span to be opened and closed. i

i A bascule bridge coinprisinu a movable spa-n, a lined part associated therewith, a counterweight iranie rotatably mounted on said part so that the ports thereof nieve planes and a counterweight connected with said counterweight freine for bahincing the movable span, a bridge Way i nn the movable span to the tilted part counterweignt frame in the closed i'novexnent, said portion of the counterweight ine and the said eounterweight being:- dspes-itesides of the point of support or t eounterweight frame.

.7. bridge comprising a movable span, a gied part associated therewith, a coun terrrcight frame mounted 'on seid fined part, a coiinteriveight connected With said frame for balancing the movable span, a link connecting che cou'nterweight frame and the movable span and through which the countervveight efect is transmitted. to the movabie span, an anchoring part separate from said lint: and connected With said counter- Weight frame and engaging the movable span when in i fs closed position and ancher it agair 'her downward 'movement, said anchoring part. automatically, disengaging and engaging' said movable span when it is opened and closed.

8. A bascule bridge comprising a movable span, a countervveight support, an inclined end post forming part thereof, a rotative connection at the point of connection be tween seid movable span andC said counter Weight support, said rotative connection beof the truses of the movable span and' 'ico 'ed fgov-:ef part being' disconnected when bric? is open.

am uj'uroach spamj an inclined post d piu-t of said approach span and b' o ih@ nmvnbe span, a, support for imuef post-7 un cxienson Conneced said post und projecting for 'ardy m, said mcfable Span moune on i051 at :L poin above the owe' said inclined post, :md m3111153 fm: ng he movement produced by the ec- Y comprising nur @bis spr) approach Sgam, @non pfswxdd mm 'Mm rusgef; being' in inemen'i, :m

9. a fixed chmd if? ille znovab Spun m She :liv nach spun, he bo'imn chord eff mov-abi@ Span T'h abung durf botom chord of h@ npmfoach span und means foi' Sapming device, from he movnb movable span is muelle@ l0. A wilg@ comprising a mom l pgicaon of the oad. and im nppi'wch Span, 2m uol; Gaslini@ bldge compvsmg :L movfornmlg :L pa 5f sani appmach 11? t'usses :1i auch side thel'eof,

l mevn Me Spun having' trus umeo the trusses of the movspan being in ihe same vertical pane he 'fix-H5595; @f support, trunnions in- *lam together? said trunnons bed wilhn the vezical boundary id trusses.

sfhcago, lnos, this 16th day OSTJP- B. STRUSS.

7. LINDENAU? G comprising a movabe span 

